void uwsgi_send_subscription(char *udp_address, char *key, size_t keysize, uint8_t modifier1, uint8_t modifier2, uint8_t cmd, char *socket_name, char *sign) {
if (socket_name == NULL && !uwsgi.sockets)
return;
if (!socket_name) {
socket_name = uwsgi.sockets->name;
}
struct uwsgi_buffer *ub = uwsgi_buffer_new(4096);
// make space for uwsgi header
ub->pos = 4;
if (uwsgi_buffer_append_keyval(ub, "key", 3, key, keysize)) goto end;
if (uwsgi_buffer_append_keyval(ub, "address", 7, socket_name, strlen(socket_name))) goto end;
if (uwsgi_buffer_append_keynum(ub, "modifier1", 9, modifier1)) goto end;
if (uwsgi_buffer_append_keynum(ub, "modifier2", 9, modifier2)) goto end;
if (uwsgi_buffer_append_keynum(ub, "cores", 5, uwsgi.numproc * uwsgi.cores)) goto end;
if (uwsgi_buffer_append_keynum(ub, "load", 4, uwsgi.shared->load)) goto end;
if (uwsgi.auto_weight) {
if (uwsgi_buffer_append_keynum(ub, "weight", 6, uwsgi.numproc * uwsgi.cores )) goto end;
}
else {
if (uwsgi_buffer_append_keynum(ub, "weight", 6, uwsgi.weight )) goto end;
}
#ifdef UWSGI_SSL
if (sign) {
if (uwsgi_buffer_append_keynum(ub, "unix", 4, (uwsgi_now() + (time_t) cmd) )) goto end;
unsigned int signature_len = 0;
char *signature = uwsgi_rsa_sign(sign, ub->buf + 4, ub->pos - 4, &signature_len);
if (signature && signature_len > 0) {
if (uwsgi_buffer_append_keyval(ub, "sign", 4, signature, signature_len)) {
free(signature);
goto end;
}
free(signature);
}
}
#endif
send_udp_message(224, cmd, udp_address, ub->buf, ub->pos - 4);
end:
uwsgi_buffer_destroy(ub);
}
/*
* process_private_msg(): deal with all private message
*/
void process_private_msg(char* msg, int cid) {
/* construct private_msg */
char init_token[TOKEN_LENTH + 1] = {'\0'};char ip[MAXLINE] = {'\0'};
char tcp_port[MAXLINE] = {'\0'};
strncpy(init_token, msg, TOKEN_LENTH);
//sender infomation
get_connection_info(cid, ip, tcp_port);
printf("\t got init_token: %s from %s:%s\n", init_token, ip, tcp_port);
add_init_token(init_token);
//check number of init-tokens
int num_tokens = count_init_token();
int num_peers = count_current_connections();
if ( num_tokens == num_peers ) { // received enough tokens
get_peer_token();
is_peerToken_determined = 1;
printf("\t peer token determined: %s\n", self_peer_msg.peer_token);
send_udp_message();
}
}